curl --request PATCH \
  --url https://api.attio.com/v2/objects/users/records/{record_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "data": {
    "values": {
      "user_id": "123",
      "primary_email_address": "person@company.com",
      "person": {
        "target_object": "people",
        "target_record_id": "891dcbfc-9141-415d-9b2a-2238a6cc012d"
      },
      "workspace": [
        {
          "target_object": "workspaces",
          "target_record_id": "72ef5feaf-4919-4208-b332-1339ab8ba040"
        }
      ]
    }
  }
}
'

import requests

url = "https://api.attio.com/v2/objects/users/records/{record_id}"

payload = { "data": { "values": {
            "user_id": "123",
            "primary_email_address": "person@company.com",
            "person": {
                "target_object": "people",
                "target_record_id": "891dcbfc-9141-415d-9b2a-2238a6cc012d"
            },
            "workspace": [
                {
                    "target_object": "workspaces",
                    "target_record_id": "72ef5feaf-4919-4208-b332-1339ab8ba040"
                }
            ]
        } } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    data: {
      values: {
        user_id: '123',
        primary_email_address: 'person@company.com',
        person: {
          target_object: 'people',
          target_record_id: '891dcbfc-9141-415d-9b2a-2238a6cc012d'
        },
        workspace: [
          {
            target_object: 'workspaces',
            target_record_id: '72ef5feaf-4919-4208-b332-1339ab8ba040'
          }
        ]
      }
    }
  })
};

fetch('https://api.attio.com/v2/objects/users/records/{record_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.attio.com/v2/objects/users/records/{record_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'data' => [
        'values' => [
                'user_id' => '123',
                'primary_email_address' => 'person@company.com',
                'person' => [
                                'target_object' => 'people',
                                'target_record_id' => '891dcbfc-9141-415d-9b2a-2238a6cc012d'
                ],
                'workspace' => [
                                [
                                                                'target_object' => 'workspaces',
                                                                'target_record_id' => '72ef5feaf-4919-4208-b332-1339ab8ba040'
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.attio.com/v2/objects/users/records/{record_id}"

	payload := strings.NewReader("{\n  \"data\": {\n    \"values\": {\n      \"user_id\": \"123\",\n      \"primary_email_address\": \"person@company.com\",\n      \"person\": {\n        \"target_object\": \"people\",\n        \"target_record_id\": \"891dcbfc-9141-415d-9b2a-2238a6cc012d\"\n      },\n      \"workspace\": [\n        {\n          \"target_object\": \"workspaces\",\n          \"target_record_id\": \"72ef5feaf-4919-4208-b332-1339ab8ba040\"\n        }\n      ]\n    }\n  }\n}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://api.attio.com/v2/objects/users/records/{record_id}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"values\": {\n      \"user_id\": \"123\",\n      \"primary_email_address\": \"person@company.com\",\n      \"person\": {\n        \"target_object\": \"people\",\n        \"target_record_id\": \"891dcbfc-9141-415d-9b2a-2238a6cc012d\"\n      },\n      \"workspace\": [\n        {\n          \"target_object\": \"workspaces\",\n          \"target_record_id\": \"72ef5feaf-4919-4208-b332-1339ab8ba040\"\n        }\n      ]\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.attio.com/v2/objects/users/records/{record_id}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": {\n    \"values\": {\n      \"user_id\": \"123\",\n      \"primary_email_address\": \"person@company.com\",\n      \"person\": {\n        \"target_object\": \"people\",\n        \"target_record_id\": \"891dcbfc-9141-415d-9b2a-2238a6cc012d\"\n      },\n      \"workspace\": [\n        {\n          \"target_object\": \"workspaces\",\n          \"target_record_id\": \"72ef5feaf-4919-4208-b332-1339ab8ba040\"\n        }\n      ]\n    }\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "data": {
    "id": {
      "workspace_id": "14beef7a-99f7-4534-a87e-70b564330a4c",
      "object_id": "97052eb9-e65e-443f-a297-f2d9a4a7f795",
      "record_id": "bf071e1f-6035-429d-b874-d83ea64ea13b"
    },
    "created_at": "2022-11-21T13:22:49.061281000Z",
    "web_url": "https://app.attio.com/salarya/person/bf071e1f-6035-429d-b874-d83ea64ea13b",
    "values": {
      "person": [
        {
          "active_from": "2023-01-01T15:00:00.000000000Z",
          "active_until": null,
          "created_by_actor": {
            "type": "system",
            "id": null
          },
          "target_object": "people",
          "target_record_id": "891dcbfc-9141-415d-9b2a-2238a6cc012d",
          "attribute_type": "record-reference"
        }
      ],
      "primary_email_address": [
        {
          "active_from": "2023-01-01T15:00:00.000000000Z",
          "active_until": null,
          "created_by_actor": {
            "type": "system",
            "id": null
          },
          "original_email_address": "person@company.com",
          "email_address": "person@company.com",
          "email_domain": "company.com",
          "email_root_domain": "company.com",
          "email_local_specifier": "person",
          "attribute_type": "email-address"
        }
      ],
      "user_id": [
        {
          "active_from": "2023-01-01T15:00:00.000000000Z",
          "active_until": null,
          "created_by_actor": {
            "type": "system",
            "id": null
          },
          "value": "123",
          "attribute_type": "text"
        }
      ],
      "workspace": [
        {
          "active_from": "2023-01-01T15:00:00.000000000Z",
          "active_until": null,
          "created_by_actor": {
            "type": "system",
            "id": null
          },
          "target_object": "workspaces",
          "target_record_id": "72ef5feaf-4919-4208-b332-1339ab8ba040",
          "attribute_type": "record-reference"
        }
      ]
    }
  }
}

{
  "status_code": 400,
  "type": "invalid_request_error",
  "code": "missing_value",
  "message": "Required value for attribute with ID \"41252299-f8c7-4b5e-99c9-4ff8321d2f96\" was not provided."
}

{
  "status_code": 404,
  "type": "invalid_request_error",
  "code": "not_found",
  "message": "Object with slug/ID \"people\" not found."
}